The CastleGuard Salt-Free Combo combines whole-home upflow carbon filtration with salt-free scale water conditioning in a two-tank system designed for city water. The Salt-Free Combo System provides comprehensive whole-home water treatment without the use of salt or system regeneration. The multi-stage system combines sediment filtration to capture dirt, rust, and suspended particles; high-grade carbon filtration to remove chlorine, chloramines, chemicals, VOCs, unpleasant tastes and odors; and salt-free conditioning to eliminate the formation of hard-water scale throughout your plumbing and appliances.
The incoming water first passes through an included 4.5-inch x 20-inch, 5-micron sediment prefilter to capture dirt, sand, silt, rust, and other suspended particles. Water then moves upward through the carbon filtration tank to remove chlorine- and chloramine-related taste and odors before entering the salt-free conditioner, where the Shield-Soft™ media uses Nucleation-Assisted Crystallization to eliminate the minerals’ tendency to form hard-water scale. The result is cleaner, better-tasting water with added scale protection—all with minimal maintenance, no salt, zero wastewater, and no electricity required.
The upflow carbon stage removes chlorine- and chloramine-related tastes and odors, so any water you use for cooking and baking tastes and smells better.
Hard water can damage your plumbing, fixtures, and appliances. Our Single Tank Upflow Salt-Free Conditioner with Shield-Soft™ eliminates scale while maintaining efficient water flow and protecting your home—without salt, chemicals, or wastewater.
The Single Tank Upflow Carbon Filtration System removes chlorine and chloramines, helping prevent your skin and hair from drying out.
Switching from bottled water to filtered tap water may save your household hundreds of dollars annually, reduce plastic waste, and limit potential exposure to microplastics.
Eliminate hard-water scale without buying, lifting, or storing heavy salt bags. The Salt-Free Water Conditioner removes hard water minerals without creating the slippery or soapy feel associated with traditional water softeners. With no regeneration cycle, wastewater, or brine discharge, it offers a simple, low-maintenance alternative to salt-based softening.
The CastleGuard Salt-Free Combo provides whole-home filtration and scale protection without salt, electricity, wastewater, or brine discharge. Enjoy cleaner, better-tasting water with a low-maintenance system that’s better for your home and the environment.
Water moves upward through a bed of high-grade premium carbon media blend, removing chlorine, chloramines, chemicals, and VOCs. The upflow design path, along with the Vortech tank, eliminates channeling concerns and provides for optimal media contact for maximum filtering benefits.
Water is directed into an included 4.5” x 20” high-flow sediment filter housing with a 5-micron sediment filter. Sand, dirt, rust and particulate debris in the water is removed to the 5-micron pore size. (5-microns is similar to about 15 times less than the diameter of human hair.)
The now filtered water enters the Salt-Free Conditioner tank. This tank utilizes a specialized conditioner media called Shield-Soft™ to alter the scale-forming and bonding capability of calcium and magnesium through a process called Nucleation-Assisted Crystallization (NAC). This means that beneficial minerals like calcium and magnesium remain in the water, while the undesirable effects that cause hard water issues and nuisances are eliminated.
A now filtered and conditioned water is able to flow to every tap and faucet in the home. Zero water is wasted in the process, and no drain lines or electricity are needed.
| Specifications | CG-SFC-10 | CG-SFC-15 | CG-SFC-20 |
|---|---|---|---|
| Bathrooms | 1-2 | 2.5–4.5 | 5-6 |
| Tank Width | 9" | 10" | 12" |
| Tank Height | 48" | 54" | 52" |
| Flow Rate | 10 GPM | 15 GPM | 20 GPM |
| Connection Size | 1" | 1" | 1" |
| Operating Pressure | 25 – 80 PSI | 25 – 80 PSI | 25 – 80 PSI |
| Operating Temperatures | 36 – 120°F | 36 – 120°F | 36 – 120°F |
| Sediment Change / Replacement | Every 6 – 12 months | Every 6 – 12 months | Every 6 – 12 months |
| Media Change / Replacement | Every 5-years or 1,000,000 gallons, or as needed* | 5-years or 1,000,000 gallons, or as needed* | 5-years or 1,000,000 gallons, or as needed* |
| pH Range | 6.5 – 9.5 | 6.5 – 9.5 | 6.5 – 9.5 |
| Hardness GPG Max | 25 GPG (427.5 ppm / mg/L) | 25 GPG (427.5 ppm / mg/L) | 25 GPG (427.5 ppm / mg/L) |
| Iron Max | < 0.3 ppm (mg/L) | 0.3 ppm | 0.3 ppm |
| Manganese Max | < 0.05 ppm (mg/L) | 0.05 ppm | 0.05 ppm |
| Free Chlorine Max | 4.0 ppm | 4.0 ppm | 4.0 ppm |
Salt-free water conditioning that requires no backwashing, brine discharge, or water waste.
No drain connection is required, making installation cleaner, simpler, and more flexible.
Operates without electricity, helping keep the system simple, efficient, and low-maintenance while saving you money on your energy bill.
Enjoy water that feels natural and clean without the slippery, slimy feeling associated with traditional salt-based softeners.
Designed for straightforward installation and no electrical or drain-line requirements.
| Replacement | SKU | Description | Replacement Guidance |
|---|---|---|---|
| Sediment Filter Replacement | CG-SED5-20 | 4.5″ × 20″, 5-micron sediment cartridge | Replace every 6-12 months depending on water quality and household usage. |
| CastleGuard Salt-Free Conditioner Media Replacement Kits | CG-SFC-10R, CG-SFC-15R, CG-SFC-20R |
Shield-Soft™ salt-free conditioning media | Replace every 5 years or after 1 million gallons, or as needed* |
| CastleGuard Carbon Media Replacement Kits | CG-C-10R, CG-C-15R, CG-C-20R |
Upflow carbon filtration media | Replace every 5-7 years, or as needed* |
Additional Service Parts
The Upflow Carbon filtration system uses three specialized media layers to maximize contact and deliver effective whole-house water filtration. Granular activated carbon, catalytic carbon, and KDF55 media work together to remove chlorine, chloramine, unpleasant tastes and odors, and other common contaminants—all without electricity, backwashing, drain lines, or wastewater.
In the final stage, the Salt-Free Conditioner with the Shield-Soft™ Media uses Nucleation-Assisted Crystallization to convert hardness minerals into harmless microscopic crystals. These crystals remain suspended in the water and pass safely through your plumbing rather than attaching to surfaces and forming scale. The result is effective scale protection without salt, harsh chemicals, or the hassle of carrying and storing heavy salt bags.
Both the Upflow Carbon and the Salt-Free Conditioning systems utilize Vortech® Technology, which is an advanced water distribution system designed to improve the performance and efficiency of your whole-house water filtration and conditioning system. Unlike traditional systems that rely on gravel bedding, Vortech® evenly distributes water throughout the filtration media, allowing for better contaminant removal, higher flow rates, and more consistent water quality. This innovative design reduces pressure loss, uses up to 30% less water during backwashing, eliminates the need for heavy gravel, and extends the life of the filtration media. The self-cleaning nozzle design also minimizes sediment and iron buildup, resulting in lower maintenance and long-lasting reliability. Whether you’re looking to improve water quality, reduce operating costs, or maximize the efficiency of your water treatment system, Vortech® Technology delivers cleaner water with less waste and greater overall performance—maximizing your whole home water filtration.
No. It is a salt-free water conditioner combined with upflow carbon filtration. The conditioner does not remove calcium and magnesium, as an ion-exchange softener does; it changes their scale-forming behavior.
No. The salt-free conditioning stage does not use salt bags, a brine tank, or sodium exchange.
The upflow carbon stage helps improve chlorine- and chloramine-related taste and odor concerns throughout the home.
It uses Shield-Soft™ conditioning media to alter the behavior of hardness minerals, removing scale from plumbing surfaces, pipes, and appliances in your home.
No. Calcium and magnesium remain in the water. The system conditions the minerals rather than removing them.
No electronic control head, Bluetooth connection, backwash cycle, or regeneration drain is listed for the CG-SFC combo. Final installation requirements should still be confirmed before publication.
The system includes the upflow carbon tank, salt-free conditioner tank, 4.5-inch x 20-inch sediment-filter housing, 5-micron sediment cartridge, housing O-ring, spanner wrench, mounting hardware where applicable, and standard fittings where applicable.
Replace the 5-micron sediment cartridge every 6-12 months depending on incoming water quality and household usage.
The supplied salt-free conditioner specifications state every 3 years or 1 million gallons.
The combo SKU data identifies it as a city-water system. Untreated well-water applications should be evaluated separately with a current water analysis.
Use the bathroom count and service flow rate as a starting point: CG-SFC-10 for 1-2 bathrooms / 10 GPM; CG-SFC-15 for 2.5-4 bathrooms / 15 GPM; and CG-SFC-20 for 4-6 bathrooms / 20 GPM.
CastleGuard Water Systems Warranty Policy
The CastleGuard Commitment to You
At CastleGuard Water Systems, we stand behind the quality, reliability, and performance of every system we sell. We are committed to transparency, long-term value, and making sure you have confidence in your investment.
Lifetime Limited Warranty
To the original purchaser (“Customer”), CastleGuard Water Systems (“CastleGuard”) warrants that all core system components—including tanks, housings, fittings, valves, bypass assemblies, and filtration media—will be free from defects in materials and workmanship for the lifetime of the system under normal residential use and proper installation.
Additional Component Coverage
To ensure full protection across your system:
• 10-Year Limited Warranty: Large mineral tanks and retention tanks (14” or larger)
• 7-Year Limited Warranty: Electronic control heads and solid-state components
Performance You Can Trust
CastleGuard systems are designed to deliver reliable water filtration performance when installed and maintained according to our guidelines. Specific performance expectations (such as chlorine or contaminant reduction) apply only under proper water conditions and routine maintenance.
What This Warranty Does Not Cover
To keep things clear and fair, this warranty does not apply to issues caused by:
• Improper installation, handling, or misuse
• Physical damage, alterations, or unauthorized modifications
• Failure to follow installation or maintenance instructions
• Lack of routine maintenance (including timely filter/media replacement)
• Water conditions outside recommended system specifications
• Acts of nature (fire, flood, freezing, etc.)
Well Water Requirements
If your system is installed on private well water, certain conditions must be met to maintain warranty coverage:
• No hydrogen sulfide (rotten egg odor), unless properly treated
• No oil contamination
• Copper levels below 1.30 mg/L
• Controlled levels of iron and manganese
If these conditions are present, pre-treatment is required. Our team is happy to help guide you to the right setup.
Simple Warranty Claim Process (Aligned with Returns Policy)
We’ve made our process straightforward and consistent with our shipping & returns policy:
1. Contact Us First – Reach out to CastleGuard Customer Support to begin your claim.
2. Get Authorization (RAC) – A Return Authorization Code (RAC) number is required before sending any item back.
3. Return the Item
– Items may need to be returned for inspection
– Return shipping instructions will be provided
– Standard return shipping applies; expedited shipping is optional at customer expense
4. Repair or Replacement – Once approved, CastleGuard will repair or replace the defective component.
Shipping Alignment
• Warranty replacements are processed and shipped in accordance with our standard order processing timelines (typically 3–5 business days)
• Standard shipping is included unless otherwise specified
• Expedited shipping options are available at the customer’s request and expense
Customer Responsibilities
To keep your warranty active:
• Follow all installation and operating instructions
• Perform routine maintenance as recommended
• Use the system only within designed water conditions
• Retain proof of purchase
Important Limitations
• Warranty applies only to the original purchaser and is non-transferable
• Coverage is valid only at the original installation location
• Warranty begins on the date of delivery
• Labor, plumbing, and service costs are not included
Limitation of Liability
CastleGuard Water Systems’ responsibility is limited to repair or replacement of defective components.
We are not liable for:
• Incidental or consequential damages
• Property damage or water damage
• Loss of use or system downtime
Total liability will not exceed the product’s original purchase price.
Disclaimer
This warranty replaces all other warranties, express or implied, including warranties of merchantability or fitness for a particular purpose.
Governing Law
This policy is governed by the laws of the State of Florida.
We’re Here to Help
Our goal is to make clean, reliable water simple. If you have questions about your system, water conditions, or warranty coverage, our team is here to help every step of the way.
CastleGuard Water Systems Shipping & Returns Policy
Shipping Policy / Free Shipping (Continental USA)
CastleGuard Water Systems offers free economy ground shipping on most orders over $199.00 within the continental United States.
Orders are typically processed and shipped within 3–5 business days from the date of purchase.
Orders placed over the weekend or on holidays will begin processing on the next business day. During high-volume periods, processing times may be extended without prior notice. Once shipped, estimated delivery times range from 3–7 business days, depending on the destination and carrier performance.
Shipping outside the continental United States, including Alaska, Hawaii, and Canada, will incur additional charges, which are calculated at checkout. The customer is responsible for any applicable duties, taxes, or import fees.
Billing Information
Charges will appear on your credit card statement as CastleGuard Water Systems.
Well Water System Orders
CastleGuard Water Systems reviews well water system orders to promote compatibility with the customer’s water conditions; however, final responsibility for system selection rests solely with the purchaser.
• The Company strongly recommends submission of a current water test from a certified laboratory prior to purchase.
• Orders may be placed on hold pending receipt and review of water test results.
• If additional treatment or system modifications are recommended, the customer will be notified prior to fulfillment.
• Orders placed without a valid water test may be processed at the customer’s request; however, the customer assumes all risks related to system compatibility, performance, and effectiveness.
Processing and shipping timeframes begin only after any required review has been completed.
Tracking Your Order
A tracking number will be provided via email once the order has shipped.
Tracking updates are provided by third-party carriers and may be delayed. CastleGuard Water Systems is not responsible for delays or inaccuracies in carrier tracking systems. Please allow up to 48 hours for tracking updates to appear.
Undeliverable Packages
If an order is returned as undeliverable:
• A refund will be issued less all applicable shipping charges and handling costs.
• CastleGuard Water Systems is not responsible for delivery failures caused by incorrect, incomplete, or outdated address information provided by the customer.
• Orders will not be automatically reshipped. Customers must place a new order to receive the product.
Customers must contact Customer Service if:
They believe delivery may fail
They have not received confirmation of a returned shipment
More than three (3) weeks have passed since the estimated delivery date
Refunds are processed within 7–10 business days after receipt and inspection of the returned package.
Refused Deliveries
If a shipment is refused for reasons not attributable to CastleGuard Water Systems:
• The customer is responsible for all return shipping charges
• A restocking fee may be applied in accordance with this policy
All original shipping costs are non-refundable.
Damaged or Lost Shipments
All claims must comply with the following:
• Small-package shipment claims must be submitted within 10 calendar days of delivery
• Freight shipments must be inspected at delivery, and any visible damage must be noted on the carrier’s delivery receipt at the time of delivery
Failure to properly document damage at delivery may result in denial of the claim.
CastleGuard Water Systems reserves the right to require photographic evidence and supporting documentation. Claims processing may take 5–14 business days or longer, depending on the carrier’s investigation timeline.
Order Cancellations & Price Adjustments
Orders may be canceled only prior to entering fulfillment.
• Fulfillment begins when a shipping label is created
• Once fulfillment begins, orders cannot be canceled, modified, or intercepted
• Orders in fulfillment must follow the return process
Cancellation requests must be made by phone. Email requests are not guaranteed to be processed in time.
CastleGuard Water Systems does not offer price adjustments or retroactive discounts. Promotional pricing applies only during the active promotional period and while supplies last.
Approved refunds for cancellations are processed within 7–10 business days.
Return Policy
General Returns
CastleGuard Water Systems accepts returns within ninety (90) days of the original purchase date, subject to the following conditions:
• Items must be unused, uninstalled, and in original packaging
• Products must be free from damage, alteration, or signs of use
Additional conditions:
• Original shipping charges are non-refundable
• Return shipping costs are the responsibility of the customer
• All returns are subject to inspection and approval prior to refund issuance
• Taxes, duties, brokerage fees, and shipping charges are non-refundable
CastleGuard Water Systems reserves the right to deny any return that does not meet these conditions.
Refunds are processed within 7–10 business days following inspection and approval.
Restocking Fees
• A minimum 10% restocking fee applies to all approved non-defective returns
• A restocking fee of up to 25% may be applied for returns requiring additional handling, repackaging, or for refused shipments
Restocking fees are assessed at the sole discretion of CastleGuard Water Systems.
Performance Guarantee
CastleGuard Water Systems offers a 6-Month Satisfaction & Performance Guarantee on eligible products.
• The Company will provide troubleshooting assistance, replacement parts, or corrective recommendations as deemed appropriate
• This guarantee is limited to product performance and does not constitute a full refund policy for installed systems
Installed systems are not eligible for return unless confirmed defective by CastleGuard Water Systems.
For verified defective products:
• Return shipping will be covered by the Company
• A refund or replacement will be issued at the Company’s discretion
• Installation, labor, and related costs are expressly excluded
Product Exchanges
For defective or damaged items:
• Customer must notify CastleGuard Water Systems within 30 days of delivery
• A Return Authorization Code (RAC) and prepaid return label will be issued upon approval
• Replacement will be shipped after inspection and verification
For non-defective exchanges:
• The original item must be returned in accordance with this policy
• A new order must be placed for the replacement item
Limitation of Liability
To the fullest extent permitted by law, CastleGuard Water Systems shall not be liable for any indirect, incidental, consequential, or special damages, including but not limited to water damage, property damage, loss of use, or installation-related costs arising from the purchase or use of its products.
Summary
This policy establishes clear terms governing shipping, returns, and product support. By placing an order, the customer agrees to all terms outlined herein.
CastleGuard Water Systems is committed to delivering a seamless experience built on transparency, efficiency, and customer satisfaction with every order.
